Digital fingerprint

Digital fingerprint may refer to:

• Message digest, the output of a one-way function when applied to a stream of data
• Public key fingerprint, short sequence of bytes used to identify a longer public key
• Fingerprint (computing)
• Acoustic fingerprint, a condensed digital summary generated from an audio signal
• Device fingerprint, a compact summary of software and hardware settings collected from a remote device, for example a computer or a web browser
• Digital video fingerprinting, a technique to summarize characteristic components of a video recording
• TCP/IP stack fingerprinting, the remote detection of the characteristics of a TCP/IP stack
• Content ID, a Google technology used on YouTube to identify content protected by copyright